Executive Summary

Informations
Name CVE-2022-26356 First vendor Publication 2022-04-05
Vendor Cve Last vendor Modification 2024-02-04

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
Overall CVSS Score 5.6
Base Score 5.6 Environmental Score 5.6
impact SubScore 4 Temporal Score 5.6
Exploitabality Sub Score 1.1
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction None
Scope Changed Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:H/Au:N/C:N/I:N/A:C)
Cvss Base Score 4 Attack Range Local
Cvss Impact Score 6.9 Attack Complexity High
Cvss Expoit Score 1.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Racy interactions between dirty vram tracking and paging log dirty hypercalls Activation of log dirty mode done by XEN_DMOP_track_dirty_vram (was named HVMOP_track_dirty_vram before Xen 4.9) is racy with ongoing log dirty hypercalls. A suitably timed call to XEN_DMOP_track_dirty_vram can enable log dirty while another CPU is still in the process of tearing down the structures related to a previously enabled log dirty mode (XEN_DOMCTL_SHADOW_OP_OFF). This is due to lack of mutually exclusive locking between both operations and can lead to entries being added in already freed slots, resulting in a memory leak.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26356

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-667 Insufficient Locking

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 17
Os 1
Os 2
Os 163

Sources (Detail)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedora...
https://security.gentoo.org/glsa/202402-07
Source Url
CONFIRM http://xenbits.xen.org/xsa/advisory-397.html
DEBIAN https://www.debian.org/security/2022/dsa-5117
MISC https://xenbits.xenproject.org/xsa/advisory-397.txt
MLIST http://www.openwall.com/lists/oss-security/2022/04/05/1

Alert History

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Date Informations
2024-02-04 13:28:05
  • Multiple Updates
2023-11-07 21:32:35
  • Multiple Updates
2023-08-09 17:28:22
  • Multiple Updates
2023-08-02 02:11:59
  • Multiple Updates
2022-11-04 13:06:22
  • Multiple Updates
2022-07-30 00:27:39
  • Multiple Updates
2022-05-02 17:23:02
  • Multiple Updates
2022-04-22 05:23:01
  • Multiple Updates
2022-04-19 17:22:59
  • Multiple Updates
2022-04-15 00:22:59
  • Multiple Updates
2022-04-05 21:22:51
  • Multiple Updates
2022-04-05 17:22:53
  • First insertion